Fire-clay block and attachment.



No. 812,437. PATENTED TNB. 1N.` 1906. N. N.. MORRISON.

TIRE CLATBLOGK AND ATTACHMENT.

APPLICATION FILED JAN.16, 1905.

Ww W //W -W my REASON R. MORRISON, OF MINERAL CITY, OHIO.

FIRE-CLAY BLOCK AND ATTACHMENT.

Specification of Letters Patent.

Patented Feb. 13, 1906.

Application filed January 16, 1905. Serial No. 241,219.

To all whom t may con/cern,.-

Beit known that I, REASON R. MORRISON, a citizen of the United States,and a resident of Mineral City, county of Tuscarawas, State of Ohio,have invented certain new and useful Improvements in Fire-Clay Blocksand Attachments, of which I hereby declare the following to be a full,clear, and eXact description, such as will enable others skilled in theart to which it appertains to make and use the same.

The object of the invention is to provide a refractory fire-clay blockfor use in connection with furnaces in which great heat is evolved, suchas fluXing-furnaces for continuously heating glass or for continuouslyworking glass or other substances, the primary object being to provide arefractory block in a situation where it is more than usually exposed toheat with an internal circulation of a cooling medium, such as water orsteam, whereby although the exterior of the block will retain therequired degree of heat to avoid cooling the contents of the furnace thecooling circulation through the block will prevent the block itself frombecoming disintegrated and destroyed by constant use.

The invention consists in a block of refractory fire-clay having aninterior opening and inlet and outlet openings communicating therewiththrough the outer wallof the opening and in the details of constructionand combination of parts, as hereinafter described, shown in theaccompanying drawings, and specifically pointed out in the claim.

In the accompanying drawings, Figure 1 is a plan of a continuousmelting-chamber and continuous working chamber of a glass-meltingfurnace, showing a narrow neck between vthe chambers and refractoryfire-clay block therein. Fig. 2 is a longitudinal section thereof. Figs.3 and 4 areenlarged detail views in section of refractory fire-clayblocks broken away to show the interior opening andcirculating-passages. Fig. 5 is a vertical section of furnace-wall,showing a circulating-pipe for a cooling medium and pipes connecting thesame with the circulating-passages of the several blocks forming thewall.

In the views, 1 is the continuous meltingchamber of the furnace; 2, thecontinuous working chamber; 3, the neck connecting these chambers.

4 is a transversely-placed neck block or brick which connects the wallsof the neck above the bottom and prevents the froth of the glass fromentering the working chamber, so that only the solid portion of theglass will pass thereunder at Fig. 2. This brick is subject to greatheat, and if it disintegrates on account of the heat and the constantwearing movement of the current of glass below a hole would be formedthrough which the froth on the surface of the glass would enter theworking chamber and injure the quality of the glass. To prevent thisresult, an interior opening 5 is formed in this block, and through eachend of the block is formed a passage 6, communicating with this centralopening, one serving for the inlet of the cooling medium and the otherfor the outlet thereof. In this manner the block is preserved fromoverheating to a degree which would destroy it; but the heat in the neckof the furnace is too great to permit the block to become cool enough tocool the melted contents ofthe furnace.

At 8 8 are seen blocks comprising together the side walls of the meltingchamber in which the temperature is very high. Here the blocks are shownprovided with central openings in the same manner as just described forthe neck-block but the blocks are stood upon end and the openings 6 forcirculation of the cooling medium are made in the exterior wall oneabove the other, as in Fig. 3. The blocks can all be connected in onecirculating system by means of a vertical pipe 9 and lateral branches10, which enter the openings in the walls of the several blocks.

In order to connect the pipes which convey the water or steam to theblocks with the circulating-passages in the blocks, a couplingconnection is shown in Figs. 3 and 4 where the plate 11 is seen attachedsecurely to the block by means of hooked or T-headed bolts 12, and thepipe is inserted in the central threaded opening 13 in the center of theplate. An asbestos or other packing-gasket 14 is seen let into the innerface of this plate, which makes the coupling water or steam tight.

The advantages of this device are obvious for the preservation ofrefractory fire-blocks in furnaces in which great heat is generated andwhich are full of melted masses of material which would destroy theblocks in course of time if not protected.

Having described my invention, what I claim as new, and desire to secureby Letters Patent, isl The combination with a block of refractory ICOfire-clay, provided with a centra opening and through said plates andgaskets between said inlet and outlet circulating-openings in the platesand block, substantially as described. 1o Wall of said central opening,of couplings for In testimony Whereoil I hereunto set my the attachmentof circulating-pipes to said hand thisSOth day of December, 1904.

5 circulating-openings consisting of plates pro- REASON R. MORRISON.

vided With openings registering With said in- In presence 0flet andoutlet openings respectively and hold- WM. M. MONROE,

ing-bolts embedded in said block and passing E. O. KINOAD).

